I'm sorry but its not possible. If your wondering how the boss kyle can do the melee combos with his saber it's because he has special AI hard coded into the SP AI code which cannot be altered. I don't know why only that npc can use that AI but it's just special AI in the SP Game code, you can't get other NPCs to use it either, the AI entry in the code probably targets the entry in the npc file. The reason the SP Game code cannot be altered is becaused no SP SDK has been released. So even if you open up the .dlls you cannot recompile them so you cannot create a successful SP code modification. But if you know how to make NPCs you'll know that you can alter their AI to an extent. Sorry for a long paragraph.

Your auto-blocking is in vain! Only SP source code modification can allow you to block my desann-style attacks without being staggered now!

Actually it might be possible to change katas because I made a new custom staff for myself for use in SP (it has tons of bonuses like parry and lock bonuses) and I don't know how or why but when I kata with it in SP my dude reaches out and stabs, its really cool, he basically does the same thing as he does on a roll stab except without rolling or crouching, I'll give you a screen if you want. Also, when I switched to medium style I could kick but I couldn't throw my saber.

Your auto-blocking is in vain! Only SP source code modification can allow you to block my desann-style attacks without being staggered now!

I will, I can post a pic too if you want. Right now I'm on my downstairs comp though which isn't my gaming comp. I'll edit my post later with the .sab file later or if there's a new post in the topic I'll make a new post.